시그니처 캔

- isActive default true

src/main/kotlin/kr/co/vividnext/sodalive/live/signature/SignatureCan.kt

@@ -10,7 +10,7 @@ import javax.persistence.ManyToOne
 @Entity
 data class SignatureCan(
     val can: Int,
-    var isActive: Boolean = false
+    var isActive: Boolean = true
 ) : BaseEntity() {
     var image: String? = null